Home / 144,501.66-199,415.16-87,140.70

Finding the Fourth Proportional to 144,501.66, 199,415.16 and 87,140.70

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Solution

The fourth proportional to 144,501.66, 199,415.16 and 87,140.70 is: 120,255.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,501.66 : 199,415.16 = 87,140.70 : x
  2. Step 2: Convert to fraction form
    144,501.66/199,415.16 = 87,140.70/x
  3. Step 3: Cross multiply
    144,501.66x = 199,415.16 × 87,140.70
  4. Step 4: Simplify right side
    144,501.66x = 17,377,176,633.01
  5. Step 5: Solve for x
    x = 17,377,176,633.01/144,501.66
  6. Step 6: Final answer
    x = 120,255.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.